A fix in static inter_mode_rd_model_estimation

Change-Id: I3050eaf16272ee6a5c04be62f6c7ca5e4ffbf0da
diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index a4c18a1a..fc34028 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -12375,7 +12375,7 @@
                        &rd_stats_y, &rd_stats_uv, mode_rate,
                        search_state.best_rd)) {
         continue;
-      } else {
+      } else if (cpi->sf.inter_mode_rd_model_estimation == 1) {
         const int skip_ctx = av1_get_skip_context(xd);
         inter_mode_data_push(tile_data, mbmi->sb_type, rd_stats.sse,
                              rd_stats.dist,